jeysen13 jeysen13 11-01-2021 Mathematics contestada 9. Solve the following equations for the unknown variable. a. x + 6 = 8 + 7x [2 points] I b. - 2x + 11 - 5x = 5 - 6x [3 points] c. 2(x - 4) = 4x + 3x + 7 [3 points)